Went into the loccal dealer today to pick up some parts for my '99 WR400F, I walked out with the parts and a new bike. Now my question is "which bike" do I take home? Due to the sale today and lack of resistance from my wife, I now have the decision as to which bike do I want to buy. I'm torn between an '08 WR450, an '07 YZ450 or the '08 YZ450 After a couple of hours of research I'm seriously considering the move to the YZ. After years of faithful service from the WR, I'm anxious to give the lighter, more powerful YZ a shot. My riding is strictly on the trail and living in CO it is still possible to (the YZ) plate despite the lack of lighting. I can get the '07 YZ out the door for 6K, another $600 or $700 and I can get the '08 YZ or WR. The advantages as I see it for the WR are, less options I need to buy (chain, kickstand, spark arrestor). The cons are the weight, the AIS mess, and the suspension work I'll likely need to invest (6'4" 215 lbs). Should I make the move to the YZ, the major difference I see is the chassis and the steering advantage the '08 gives. The question is.... is it worth $800 bucks and regardless...it'll be an improvement over my current ride. I also noticed in my searching that a lot more people are trying to convert WR's to YZ's. I appreciate any feedback from anyone who has gone from one to the other.